A proposal for B-physics on current lattices
High Energy Physics - Lattice
2014-11-20 v2 High Energy Physics - Phenomenology
Abstract
A method to extract B-physics parameters (b-quark mass and fB, fBs decay constants) from currently available lattice data is presented and tested. The approach is based on the idea of constructing appropriate ratios of heavy-light meson masses and decay constants, respectively, possessing a precisely known static limit, and evaluating them at various pairs of heavy quark masses around the charm. Via a smooth interpolation in the heavy quark mass from the easily accessible charm region to the asymptotic point, B-physics parameters are computed with a few percent (statistical + systematic) error using recently produced Nf=2 maximally twisted Wilson fermions data.
Cite
@article{arxiv.0909.3187,
title = {A proposal for B-physics on current lattices},
author = {ETM collaboration and B. Blossier and P. Dimopoulos and R. Frezzotti and G. Herdoiza and K. Jansen and V. Lubicz and G. Martinelli and C. Michael and G. C. Rossi and A. Shindler and S. Simula and C. Tarantino and C. Urbach},
journal= {arXiv preprint arXiv:0909.3187},
year = {2014}
}
Comments
23 pages, 8 figures; version to appear in JHEP